Use StatusEntry class instead of repeated status line parsing.
This small cleanup abstracts out repeated instances of
(rev, name) = applied[x].split(':'), making it easier to use
applied or change the status file format.
#!/bin/sh
hg init
echo This is file a1 > a
hg add a
hg commit -m "commit #0" -d "1000000 0"
ls
echo This is file b1 > b
hg add b
hg commit -m "commit #1" -d "1000000 0"
hg co 0
# B should disappear
ls